首页|大宝山含钨褐铁矿中钨的赋存状态与嵌布特征

大宝山含钨褐铁矿中钨的赋存状态与嵌布特征

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通过多种分析方法,探究广东大宝山含钨褐铁矿的物相组成、元素分布等工艺矿物学特征,以揭示矿石中关键金属钨的赋存状态与嵌布特征.X射线荧光分析(XRF)、粉末X射线衍射(XRD)以及扫描电子显微镜和能谱(SEM-EDS)结果表明:矿石中主要矿物为含钨褐铁矿和石英,关键金属钨品位为1.35％.微区X射线衍射(Micro-XRD)和矿物解离度分析仪(MLA)结果表明:钨主要赋存于高铁钨华((W,Fe)(O,OH)3)中,而高铁钨华则以剥离和带状形式紧密分布在褐铁矿中.同时,还定量分析了有价元素在各主要矿物中的赋存和分布情况,并讨论了含钨褐铁矿风化演变和形成机制.最终提出了一种选冶联合分选回收流程,为高效回收含钨褐铁矿中关键金属钨提供理论基础.
Occurrence state and distribution characteristics of tungsten in Dabaoshan tungsten-bearing goethite
The phase composition and elemental distribution of the tungsten-bearing goethite in Dabaoshan,Guangdong Province,China,were explored through various analytical methods,aiming to reveal the occurrence state and embedding characteristics of critical metal W in the ore.X-ray fluorescence analysis(XRF),powder X-ray diffraction(powder XRD),and scanning electron microscopy and energy dispersive spectroscopy(SEM-EDS)results show that the grade of critical metal W is 1.35％,and its main minerals are tungsten-bearing goethite and quartz.Micro-area XRD and mineral liberation analyzer(MLA)results indicate that ferrotungsten ore((W,Fe)(O,OH)3),the tungsten-bearing phase,was mainly present in the form of stripped and banded goethite.The valuable element distribution in major minerals was also quantitatively determined.Moreover,a possible mechanism for the evolution and formation of tungsten-bearing goethite weathering was discussed,and a combined flowsheet of beneficiation-metallurgical separation was proposed to provide a theoretical basis for the high-efficient recovery of critical metal W from tungsten-bearing goethite.

tungsten-bearing goethiteoccurrence statemicro-area X-ray diffraction

唐鸿鹄、刘丙建、王翠、张雄星、韩海生、王丽、曹杨、孙伟

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中南大学资源加工与生物工程学院,长沙 410083

中南大学湖南省关键金属矿产资源高效清洁利用国际联合研究中心,长沙 410083

含钨褐铁矿 赋存状态 微区X射线衍射

国家重点研发计划国家自然科学基金国家自然科学基金湖南省自然科学基金Hunan International Joint Research Center for Efficient and Clean Utilization of Critical Metal Mineral Resources,China

2022YFC290450152004335919622232023JJ200712021CB1002

2024

10.1016/S1003-6326(24)66469-1

中国有色金属学报(英文版)
中国有色金属学会

中国有色金属学报(英文版)

CSTPCD
影响因子：1.183
ISSN：1003-6326
年,卷(期)：2024.34(4)
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